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Turn your bosses, sound, light, magnetic control switch circuit part (circuit)

Time:05-24

D1 and Q2 what is the role of, why not directly answer the 3 pin Q5

CodePudding user response:

Did you forget to post up?

CodePudding user response:

reference 1st floor seedundersnow response:
did you forget to post up?

Resend the ,,,,,,,